testsuite/simdag/sd_test.c

   1 #include <stdio.h>
   2 #include <stdlib.h>
   3 #include "simdag/simdag.h"
   4 #include "xbt/ex.h"
   5 #include "xbt/log.h"
   6
   7 XBT_LOG_NEW_DEFAULT_CATEGORY(sd_test,
   8                              "Logging specific to this SimDag example");
   9
  10 int main(int argc, char **argv) {
  11   int i;
  12   const char* platform_file;
  13
  14   const SD_workstation_t *workstations;
  15   SD_workstation_t w1;
  16   SD_workstation_t w2;
  17   const char *name1;
  18   const char *name2;
  19   const double computation_amount1 = 2000000;
  20   const double computation_amount2 = 1000000;
  21   const double communication_amount12 = 2000000;
  22   const double communication_amount21 = 3000000;
  23   const SD_link_t *route;
  24   int route_size;
  25   SD_task_t taskA;
  26   SD_task_t taskB;
  27   SD_task_t taskC;
  28   SD_task_t taskD;
  29   xbt_ex_t ex;
  30
  31   /* initialisation of SD */
  32   SD_init(&argc, argv);
  33
  34   if (argc < 2) {
  35      INFO1("Usage: %s platform_file", argv[0]);
  36      INFO1("example: %s sd_platform.xml", argv[0]);
  37      exit(1);
  38   }
  39
  40   /* creation of the environment */
  41
  42   platform_file = argv[1];
  43
  44   SD_create_environment(platform_file);
  45
  46   /* test the estimation functions (use small_platform.xml) */
  47   workstations = SD_workstation_get_list();
  48   w1 = workstations[0];
  49   w2 = workstations[1];
  50   name1 = SD_workstation_get_name(w1);
  51   name2 = SD_workstation_get_name(w2);
  52   route = SD_route_get_list(w1, w2);
  53   route_size = SD_route_get_size(w1, w2);
  54   taskA = SD_task_create("Task A", NULL, 10.0);
  55   taskB = SD_task_create("Task B", NULL, 40.0);
  56   taskC = SD_task_create("Task C", NULL, 30.0);
  57   taskD = SD_task_create("Task D", NULL, 60.0);
  58
  59   INFO3("Computation time for %f flops on %s: %f", computation_amount1, name1,
  60         SD_workstation_get_computation_time(w1, computation_amount1));
  61   INFO3("Computation time for %f flops on %s: %f", computation_amount2, name2,
  62         SD_workstation_get_computation_time(w2, computation_amount2));
  63
  64   INFO2("Route between %s and %s:", name1, name2);
  65   for (i = 0; i < route_size; i++) {
  66     INFO3("\tLink %s: latency = %f, bandwidth = %f", SD_link_get_name(route[i]),
  67           SD_link_get_current_latency(route[i]), SD_link_get_current_bandwidth(route[i]));
  68   }
  69   INFO2("Route latency = %f, route bandwidth = %f", SD_route_get_current_latency(w1, w2),
  70         SD_route_get_current_bandwidth(w1, w2));
  71   INFO4("Communication time for %f bytes between %s and %s: %f", communication_amount12, name1, name2,
  72         SD_route_get_communication_time(w1, w2, communication_amount12));
  73   INFO4("Communication time for %f bytes between %s and %s: %f", communication_amount21, name2, name1,
  74         SD_route_get_communication_time(w2, w1, communication_amount21));
  75
  76   /* creation of the tasks and their dependencies */
  77
  78   SD_task_dependency_add(NULL, NULL, taskB, taskA);
  79   SD_task_dependency_add(NULL, NULL, taskC, taskA);
  80   SD_task_dependency_add(NULL, NULL, taskD, taskB);
  81   SD_task_dependency_add(NULL, NULL, taskD, taskC);
  82   /*  SD_task_dependency_add(NULL, NULL, taskA, taskD); /\* deadlock */
  83
  84   TRY {
  85     SD_task_dependency_add(NULL, NULL, taskA, taskA); /* shouldn't work and must raise an exception */
  86     xbt_assert0(0, "Hey, I can add a dependency between Task A and Task A!");
  87   }
  88   CATCH (ex) {
  89   }
  90
  91   TRY {
  92     SD_task_dependency_add(NULL, NULL, taskA, taskB); /* shouldn't work and must raise an exception */
  93     xbt_assert0(0, "Oh oh, I can add an already existing dependency!");
  94   }
  95   CATCH (ex) {
  96   }
  97
  98   SD_task_dependency_remove(taskA, taskB);
  99
 100   TRY {
 101     SD_task_dependency_remove(taskC, taskA); /* shouldn't work and must raise an exception */
 102     xbt_assert0(0, "Dude, I can remove an unknown dependency!");
 103   }
 104   CATCH (ex) {
 105   }
 106
 107   TRY {
 108     SD_task_dependency_remove(taskC, taskC); /* shouldn't work and must raise an exception */
 109     xbt_assert0(0, "Wow, I can remove a dependency between Task C and itself!");
 110   }
 111   CATCH (ex) {
 112   }
 113
 114
 115   /* if everything is ok, no exception is forwarded or rethrown by main() */
 116
 117   /* watch points */
 118   SD_task_watch(taskD, SD_DONE);
 119   SD_task_watch(taskB, SD_DONE);
 120   SD_task_unwatch(taskD, SD_DONE);
 121
 122
 123   /* scheduling parameters */
 124   {
 125     const int workstation_number = 2;
 126     const SD_workstation_t workstation_list[] = {w1, w2};
 127     double computation_amount[] = {computation_amount1, computation_amount2};
 128     double communication_amount[] =
 129       {
 130         0, communication_amount12,
 131         communication_amount21, 0
 132       };
 133     SD_task_t *changed_tasks;
 134     double rate = -1.0;
 135
 136     /* estimated time */
 137     SD_task_t task = taskD;
 138     INFO2("Estimated time for '%s': %f", SD_task_get_name(task),
 139           SD_task_get_execution_time(task, workstation_number, workstation_list,
 140                                      computation_amount, communication_amount, rate));
 141
 142     /* let's launch the simulation! */
 143
 144     SD_task_schedule(taskA, workstation_number, workstation_list,
 145                      computation_amount, communication_amount, rate);
 146     SD_task_schedule(taskB, workstation_number, workstation_list,
 147                      computation_amount, communication_amount, rate);
 148     SD_task_schedule(taskC, workstation_number, workstation_list,
 149                      computation_amount, communication_amount, rate);
 150     SD_task_schedule(taskD, workstation_number, workstation_list,
 151                      computation_amount, communication_amount, rate);
 152
 153     changed_tasks = SD_simulate(-1.0);
 154     xbt_assert0(changed_tasks[0] == taskD &&
 155                 changed_tasks[1] == taskC &&
 156                 changed_tasks[2] == taskB &&
 157                 changed_tasks[3] == NULL,
 158                 "Unexpected simulation results");
 159
 160     xbt_free(changed_tasks);
 161   }
 162   DEBUG0("Destroying tasks...");
 163
 164   SD_task_destroy(taskA);
 165   SD_task_destroy(taskB);
 166   SD_task_destroy(taskC);
 167   SD_task_destroy(taskD);
 168
 169   DEBUG0("Tasks destroyed. Exiting SimDag...");
 170
 171   SD_exit();
 172   return 0;
 173 }
 174